| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.75 | 0.07 |
| Feb | 0.87 | 0.84 | 0.03 |
| Mar | 1.64 | 1.50 | 0.14 |
| Apr | 2.75 | 2.48 | 0.27 |
| May | 3.63 | 3.52 | 0.11 |
| Jun | 2.33 | 2.27 | 0.06 |
| Jul | 1.31 | 1.35 | -0.04 |
| Aug | 0.87 | 0.98 | -0.11 |
| Sep | 1.71 | 1.73 | -0.02 |
| Oct | 2.32 | 2.04 | 0.28 |
| Nov | 1.13 | 1.06 | 0.07 |
| Dec | 0.87 | 0.67 | 0.20 |
20.25 | 19.19 | 1.06 |